#include "pthread_impl.h"

int __pthread_mutex_consistent(pthread_mutex_t *m)
{
    int old = m->_m_lock;
    int own = old & 0x3fffffff;
    if (!(m->_m_type & 4) || !own || !(old & 0x40000000)) {
        return EINVAL;
    }

    if (own != __pthread_self()->tid) {
        return EPERM;
    }

    a_and(&m->_m_lock, ~0x40000000);
    return 0;
}

weak_alias(__pthread_mutex_consistent, pthread_mutex_consistent);
